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date, type, tags
date type tags
2026-08-12 sleep
sleep
recovery
sober
late-bedtime
low-rem

Sleep — 2026-08-12

7h 57min · 00:05→08:31 · REM: 5% · Deep: 29% · HRV: 112 · Resting HR: 48 · Score: 85/100

Fourth consecutive sober night after the Aug 9 disaster (HRV 29ms) — no alcohol signal anywhere in the data. HRV at 112ms is still solidly in the excellent sober baseline zone (110135ms), and resting HR at 48 bpm sits at the very bottom edge of his personal range — deep parasympathetic state. Rest day after the Aug 11 re-entry run, no run today.

The three-night trend is the headline: 139 → 118 → 112ms. Not alarming — 112 is a good number — but it's a gentle downward drift that lines up with a third consecutive ~midnight+ bedtime (00:24 → 00:07 → 00:05). The watch flagged it again: "you slept at 00:05, which is a little late," with the endocrine/nervous-system warning and the vitamin A/C + protein suggestion. The body is recovering well, but the timing keeps creeping late.

The real anomaly is sleep architecture: REM collapsed to 5% (24 min) — the lowest in recent logs (previous sober nights: 11% on Aug 11, 11% on Jul 29, 11% on Jul 27) — while light sleep expanded to 66% (High, ref <55%). Deep sleep held at a normal 29%. REM that low on a clean, alcohol-free night is out of pattern. Most likely drivers: the late bedtime shifting the sleep window later (circadian misalignment hits REM first), possibly with some pre-sleep mental activation before bed. Not a red flag by itself — but worth a check-in: if the late bedtime pattern holds, REM stays the first casualty.

Details

Metric Value Reference
Night sleep 7h 57min 6-10h
Bed → Rise 00:05 → 08:31
Deep sleep 29% (2h 19min) 20-60%
Light sleep 66% (5h 14min) <55% (High)
REM sleep 5% (24 min) 10-30% (Low)
Deep continuity 79 points 70-100
Times woke 1 0-1
Breathing quality 98 points 70-100
HRV 112ms 78-136ms (Within range)
Resting HR 48 bpm 48-59 bpm (Bottom of range)
SpO2 98% 97-99%
Respiratory rate 14 brpm 12-16 brpm
Score 85 / 100 Better than 94%

HRV progression

Date HRV Context
Jul 29 140ms Light dose, all-time high
Aug 9 29ms 🔴 5am drinking night — all-time low
Aug 10 139ms Recovery night after, above range
Aug 11 118ms Sober, late-ish bedtime (00:07), solid baseline
Aug 12 112ms Sober, 4th clean night, late bedtime (00:05), low REM

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